The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 13, 1990
Filed:
Nov. 17, 1988
Applicant:
Inventors:
Siro Serafini, Vicenza, IT;
Giuseppe Zagotto, Terrossa, IT;
Assignee:
Hoffman-La Roche Inc., Nutley, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07B / ; C07C / ;
U.S. Cl.
CPC ...
558418 ; 564305 ;
Abstract
4-Dimethylamino-3,5-dimethoxy-benzaldehyde, an intermediate for the preparation of the antibacterially active aditoprim (4-dimethylamino-3,5-dimethoxybenzoldehyde) a known antibacterially active compound, is obtained from 4-dimethylaminobenzonitrile by bromination or chlorination, replacement of the halogen by the methoxy group and reduction of the nitrile group.